US2933982A - Ramming device for ramming a round of ammunition into a gun barrel - Google Patents

Ramming device for ramming a round of ammunition into a gun barrel Download PDF

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Publication number
US2933982A
US2933982A US740910A US74091058A US2933982A US 2933982 A US2933982 A US 2933982A US 740910 A US740910 A US 740910A US 74091058 A US74091058 A US 74091058A US 2933982 A US2933982 A US 2933982A
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US
United States
Prior art keywords
ramming
rammer
lever
round
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US740910A
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English (en)
Inventor
Aldrin Henry Wilhelm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saab Bofors AB
Original Assignee
Bofors AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bofors AB filed Critical Bofors AB
Application granted granted Critical
Publication of US2933982A publication Critical patent/US2933982A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/38—Loading arrangements, i.e. for bringing the ammunition into the firing position
    • F41A9/39—Ramming arrangements
    • F41A9/42—Rammers separate from breech-block

Definitions

  • Y;Ramming devicesffor automatic guns generally cornprise.'a rammer-which is slidablefin the direction of the axisof the bore of the gunbarrel and which engages the around, or more specifically the bottom flange of the cartridge casing, thereby ramming the round home. 'In
  • the rammerIi's' actuated by oneor more strong helical springs, thefree ends of which when released move in the Harborrection through about the same possible dimensions of the spring or springsffAs is well knowmthe; potential energy that can be stored in acompression loaded spring is substantially proportional tothe weight of the spring and substantially independent of the dimensions of the spring.
  • a Fig. .1 is an elevational sectional view ofaramming device according to the invention.
  • the exemplified ramming device comprises a'lever 1 which is pivotal about a pivot 2 supported on a casing part of the ramr'ning device.
  • a .short' and heavy pressure "spring '3 coacts with lever 1 andseeks to turn the same'in'count'erclockwise direction as shown.
  • Thepawl ispivotally supported ona locking bridge '5 which in turn .is pivotally mounted bymeansof a'pivot 6 'se'curedlto apart 'offthe casing of the. rammingdevice.
  • Bridge 5 is prevented from turning in counter-clockwise "directionlby, aflng 7 and is prevented froinflturning clock-4 wise by a pivotal pawll8engaging the'br idge.
  • bridge 5 Byturnin'g the pawl 8inclockwise direction, bridge 5 is released 'for upwards movement, and the lever 1 will exert "a torque upon the bridge in clockwise factrthat'thctcontact surface between pawl 4 and arm 1 isnot at right angles to a line through the surf'acean'd the pivot center of bridge 5.
  • Pawl '3 may be turnediby for the acceleration of the moving spring end and the rammer. Obviously this portion ofthe energy is lost for the intended action, namely the ramming of the round.
  • Another object of the invention is to provide a novel and improved ramming device in which the spring energy is utilized to the fullest possible extent by transmitting by means of a lever the rammer movement at a right angle, that is in the most favorable direction of force.
  • Still another object of the invention is to provide a ;'novel and improved ramming device design-in which the distance of the required spring movement is shorter than the distance of the required rammer movement.
  • the actuating spring can obtain the form of a short and heavy spring'which affords the advantage of highly favorable spring conditions due to the aforementioned weight dependency of the spring force.
  • the free end of recessed at 910 receive a pin 16 the form of atwo-arm lever, pin 10 'fulcr'u'rn of. the rammer. are are; of the ramme'rfis raised to form a lip or log endual energy of the le ga'gin'gth'e bottom flan e 13 ofth'e cartridge casing of the round 14 to be rammed.
  • the raised lug of the rammer is preferably made of resilient material such as spring steel.
  • the other arm of the rammer terminates in a lug ls riding upon a guide surface 30 formed on a part of the ramming device.
  • the lug will readily absorb theshock of the contact between the rammer and resiliency of the lug thereby avoiding damage to the flange of the cartridge casing;
  • the pressure exerted by the rammer upon flange 13 and vice versa will tend to turn the rammer in a clockwise direction as seen, whereby lug 15 is pressed against the guide surface 30 thus retaining the rammer in the appropriate position-for ramming.
  • lever 1 As lever 1 approaches the end of its ramming movement, which is indicated in Fig. 1 iii-dotted lines, the lever will engage a buffer 1 which gradually absorbs the resi 1 vement. 1
  • pivot shaft 2 supports a coclii g lever 17, a reces -18 of which is engaged by a roller 19 supported by one arm 2% of a two-arm lever rotatable about a pivot 23 supported on the ramming device.
  • the other arm 21 of the lever mounts a roller 22 which is engaged by a suitable curved guide (not shown) on the breech ring 24 on the barrel of a recoiling gun during the recoil movement of the gun.
  • the gun barrel should be visualized as being of conventional design and is not shown to simplify the illustration.
  • roller 22 will be forced downwardly whereby lever 1 is directions owing to the both supported on If flange 13 should not be'in direct abutment with the J the round; due to the e 12 could be kept into spring device following the arm 1, but in such case the turned through lever 17 into the direction in which spring 3 is compressed.
  • lever 1 is directions owing to the both supported on If flange 13 should not be'in direct abutment with the J the round; due to the e 12 could be kept into spring device following the arm 1, but in such case the turned through lever 17 into the direction in which spring 3 is compressed.
  • the buffer 26 cannot be replaced by an unmovable ing, as it must allow for an extra movement of arm 1 sufficient for the locking operation.
  • the rammer the right position by means of a masses to be accelerated during the ramming operation would increase.
  • a ramming device for ramming rounds of ammunition into the breech of a gun comprising, i'ncombination,
  • a casing a casing, a rammer slidably supported upon said casing for movement along a linear path, anactuating lever, a
  • a ramming device according to claim 1 and also comprising a rammer cocking means 'engageable with said lever for pivoting said lever into said cocked position against the action of the spring means.
  • a ramming device comprising a two-arm lever, a pivot shaft pivotally supporting said lever at an intermediate point to form the 'two arms thereof, said shaft being engaged by said actuating lever, one of said rammer arms having a lug engageable with a round during the ramming operation, the other rammer arm abutting against and restrained by a guiding surface on the ramming device, the'operational pressure between said lug and the round engaged by the lug pressing said other lever arm toward said guiding surface.
  • a ramming device according to claim 3 and further comprising buffer means stationarily mounted relative to the lever, said lever abutting against said buffer means in a' predetermined position of displacement.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Wire Processing (AREA)
US740910A 1957-06-08 1958-06-09 Ramming device for ramming a round of ammunition into a gun barrel Expired - Lifetime US2933982A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE544257 1957-06-08

Publications (1)

Publication Number Publication Date
US2933982A true US2933982A (en) 1960-04-26

Family

ID=20266474

Family Applications (1)

Application Number Title Priority Date Filing Date
US740910A Expired - Lifetime US2933982A (en) 1957-06-08 1958-06-09 Ramming device for ramming a round of ammunition into a gun barrel

Country Status (6)

Country Link
US (1) US2933982A (US07860544-20101228-C00003.png)
BE (1) BE568420A (US07860544-20101228-C00003.png)
CH (1) CH367083A (US07860544-20101228-C00003.png)
DE (1) DE1080436B (US07860544-20101228-C00003.png)
FR (1) FR1196721A (US07860544-20101228-C00003.png)
GB (1) GB838408A (US07860544-20101228-C00003.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075080A2 (de) * 1981-09-23 1983-03-30 Rheinmetall GmbH Notansetzvorrichtung
US5177319A (en) * 1990-06-30 1993-01-05 Kuka Wehrtechnik Gmbh Apparatus for loading shells into tubular weapons, particularly tank howitzers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140109B (de) * 1959-07-15 1962-11-22 Rheinmetall Gmbh Ladevorrichtung fuer Geschuetze

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1602568A (en) * 1924-07-21 1926-10-12 Thomas A Conlon Mechanical loader for cannon
US2785607A (en) * 1952-11-24 1957-03-19 Bofors Ab Loading device for a gun with a barrel mounted for traversing and elevating or depressing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399722A (en) * 1944-01-06 1946-05-07 Gen Motors Corp Material handling device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1602568A (en) * 1924-07-21 1926-10-12 Thomas A Conlon Mechanical loader for cannon
US2785607A (en) * 1952-11-24 1957-03-19 Bofors Ab Loading device for a gun with a barrel mounted for traversing and elevating or depressing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075080A2 (de) * 1981-09-23 1983-03-30 Rheinmetall GmbH Notansetzvorrichtung
EP0075080A3 (en) * 1981-09-23 1983-05-25 Rheinmetall Gmbh Manual rammer device for emergency cases
US4604941A (en) * 1981-09-23 1986-08-12 Rheinmetall Gmbh Emergency chambering device
US5177319A (en) * 1990-06-30 1993-01-05 Kuka Wehrtechnik Gmbh Apparatus for loading shells into tubular weapons, particularly tank howitzers

Also Published As

Publication number Publication date
FR1196721A (fr) 1959-11-25
DE1080436B (de) 1960-04-21
CH367083A (de) 1963-01-31
BE568420A (US07860544-20101228-C00003.png)
GB838408A (en) 1960-06-22

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